A blockchain startup wants to increase the transaction throughput of their Ethereum-compatible network without changing the core protocol. They want to process many transactions off the main chain and periodically settle the final state. Which solution fits this requirement?

Rollups (optimistic or zero-knowledge)

Using a different consensus algorithm

What is blockchain interoperability?

The use of smart contracts to automate business processes

The process of migrating data from one blockchain to another

The ability of different blockchain networks to communicate and share data

The ability of a blockchain to process transactions faster

A healthcare consortium needs to share patient records among hospitals while ensuring that patients can grant and revoke access. They require a platform that supports fine-grained access control and auditability. Which platform feature is most critical to evaluate?

Support for permissioned networks and attribute-based access control

Public accessibility for transparency

Built-in cryptocurrency for incentives

A developer wants to enable users to transfer tokens from Ethereum to a compatible sidechain. They want the process to be trustless and not rely on a single entity. Which interoperability mechanism is most appropriate?

A centralized custodian that holds tokens

A federated bridge with multiple trusted validators

A team is building a blockchain for a national payment system. They need to handle millions of transactions per day with low latency. They are considering sharding. What is a key challenge they must address?

Sharding increases the storage requirement for each node

Sharding reduces the number of nodes in the network

Sharding eliminates the need for consensus

Cross-shard transactions require coordination and can increase latency

EC-CouncilBlockchain Business Leader Certification

Domain 5Objective 3

Platform Selection, Interoperability, and Scalability BBLC Practice Questions (Page 1)

Part of the Blockchain Platforms and Ecosystem domain, which makes up ~10% of our current practice bank.

25questions here

5free pages

7concepts

Questions 1–5

1application · medium
A blockchain startup wants to increase the transaction throughput of their Ethereum-compatible network without changing the core protocol. They want to process many transactions off the main chain and periodically settle the final state. Which solution fits this requirement?
Select an answer first
2foundation · easy
What is blockchain interoperability?
Select an answer first
3application · medium
A healthcare consortium needs to share patient records among hospitals while ensuring that patients can grant and revoke access. They require a platform that supports fine-grained access control and auditability. Which platform feature is most critical to evaluate?
Select an answer first
4application · medium
A developer wants to enable users to transfer tokens from Ethereum to a compatible sidechain. They want the process to be trustless and not rely on a single entity. Which interoperability mechanism is most appropriate?
Select an answer first
5application · medium
A team is building a blockchain for a national payment system. They need to handle millions of transactions per day with low latency. They are considering sharding. What is a key challenge they must address?
Select an answer first

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